SSD Power Down Issue 10, SSD Power Down Issue

Solid state drives. It's immature now. It is not recommended to use him as a system disk. This is completely in order to open up the market to put immature things on the market

First of all. The SSD loses power in a timely manner. Meaning:

He is not like a mechanical disk writing track. Even if the power is off, the data will not be lost. The data of the SSD is in case of power failure and crash.

There is a possibility of loss. This is not fatal. Acceptable.

Can you accept this? When frequent writes and writes are performed on the SSD. A large number of debris will appear.

Of course, he is not like a mechanical hard disk that can be defragmented. There is currently no way to deal with this SSD fragmentation. The only solution is to empty the disk.

Write from new. This is the only way. We know that the read speed of SSDs is about 200MB 1s.

But after a long operation. Like you said, use it as a system disk. Frequent operations.

Fragments of less than a month. Approximate read and write speed only.

40mb。The only way is for you to empty it. Write from new. This is the technical immaturity. Therefore, it is not recommended to use it as a system disk.

I know I didn't follow your question. But I don't want you to be deceived. How good is solid.

There are many drawbacks. For example, the software is incompatible. The law of addressing is not the same.

Wait a minute. I really want to use it. In waiting for a few years to put it.

This technique is currently difficult to solve.

SSDs are integrated circuit storage that require continuous power on during the read and write process. Therefore, for SSDs, once an abnormal power failure occurs, it will not only cause the loss of data that has not yet been saved, but also cause errors in previously written data in extreme cases, making the SSD unable to be recognized by the system.

The reason why the SSD is abnormally powered off and bricked is because the SSD stores an FTL table in the internal DRAM cache, which records the metadata necessary for the normal operation of the SSD, which has nothing to do with the data that the user wants to store, but plays an indispensable role in the normal operation of the SSD. The danger of abnormal broken beam and power is that these metadata are lost and damaged, resulting in the SSD being unable to read and write normally.

The data stored in the SSD is usually completely lost due to the electronic attenuation in the floating grid after a year of power failure, and the data in the SSD is really lost, and there is no possibility of recovery.

Introduction to SSDs:

Because the solid capacitor is called SOLID in Taiwanese English, the SSD is composed of a control unit and a memory unit (flash chip, DRAM chip).

SSDs are identical to ordinary HDDs in terms of interface specifications and definitions, functions and usage methods, and are basically the same as HDDs in terms of product shape and size (the size and shape of SSDs in the emerging form are completely different from SATA HDDs).

The complete files that have been stored do not matter, but the files that are being stored will be mutilated.

SSDs use flash memory and USB flash drives, so they have nothing to do with the length of power outage.

Just describe, simply understand, look at the quality of the particles. Generally, it starts in half a year. If it is MLC granules or better, generally more than 2 years.